określać ilość in inglese:

She bought flour and oil in quantity.

Quality, not quantity.

The quantity discounts are according to the size of the order.

The symbol "X" usually stands for an unknown quantity in mathematics.

Please inform us as to what quantity you can deliver at regular intervals.

Today, paper is used in quantity every day.

All kinds of food and drink are delicious and good for you, but you have to know when, where, and in what quantity.

We would be prepared to grant you a special discount of 5% for the quantity of 10 sets of STL#3456.

Vectors need not correspond to a physical quantity; anything can be a vector space as long as vector addition and scalar multiplication is defined.

- Why would he do that? - To produce a mass quantity.

What quantity are we talking about, roughly?

You need to think about the quantity of food you eat as well as the quality.

quantity - ilość

Add 50 grams of butter, and the same quantity of sugar.

the quantity of materials used, in large quantities